Two US senators are renewing calls for the Trump administration to impose sanctions on Turkey following reports that Ankara used its Russian S-400 missile defense system to track US-built F-16s belonging to other NATO allies during an exercise over the eastern Mediterranean Sea in August.
In a letter to Secretary of State Mike Pompeo this week, Senators Chris Van Hollen (D-MD) and James Lankford (R-OK) requested further information on the reported incident and confirmation as to whether Turkey had integrated a NATO data link into the Russian-built air defense system.